anderson



- May 10, 1927. 1,627,629

J. W. ANDERSON REFRIGERATIM: DEVICE Filed April 14', 19264 Inventor. 30/ WA nae/so/l.

Patented May 10, 1927.

PATENT OFFICE.

JOHN W. ANDERSON, OF HAMILTON, ONTARIO, CANADA.

REFRIGERATING DEVICE.

Application filed April 14, 1926.

The principal object of the invention is to simplify the construction and reduce the cost of operation of mechanically operated refrigerating plants.

' The principal feature of the invention consists in the novel construction and arrangement of the compressor and return from the refrigerating coil whereby the temperature of the refrigerating fluid in compression is retained at the lowest possible point.

The drawing is an elevational and part sectional view of the complete refrigerating plant.

In the construction and arrangement of apparatus as herein shown the compressor 1 for compressing fluid methyl chloride which applicant uses has a piston of the reciprocating type and coiled about the cylinder of the compressor is a copper pipe 2., the upper end of which connects with the intake to the cylinder arranged in the head 3.

The discharge from the cylinder passes through a check valve 4; from whence it is conducted through the pipe 5 to a condensing coil 6 which is arranged within a cylin der 7 through which cooling water is circulated.

The coil 6 surrounds a cylinder 8 which forms a retaining reservoir for the methyl chloride.

A pipe 9 leads from the interior of the reservoir preferably from a point close to the bottom thereof to the chamber 10 of the expansion valve 11.

The valve 11 is provided with a diaphragm 12 which supports the valve 13 and said valve is spring held closed by an adjustahle spring 14 arranged at the other side of the diaphragm .so that a predetermined pressure in the chamber 10 is required to open the valve.

Serial No. 102,042.

proper, the top 18 only of which is shown as supporting: the compressor and the motor 19 for operating same.

A pipe 20 leads from the refrigerating coil 16 and connects directly with the coil 2 surrouinlingr the compressor cylinder.

The refrigerating cycle is thus completed. It extremely simple. The cooling of the compressor cylinder by conducting the discharge from the refrigerating coil around the cylinder, effects a very great economy in operation. as the excessive heat of con1prcssion. is eliminated, consequently the time element and the necessity for a large volume of water to he used in cooling is dispensed with and the very minimum of cooling water is required.

The parts are extremely simple and can he very readily applied to and supported by the ordinary household refrigerator.

l l hat I claim as my invention is z- In a refri 'eratingr device containing a fluid refrigerating medium. the combination of a compressor; a condenser connected with the compressor: an expansion. valve connected with the condenser; a cooling coil connected with the expension valve; and a tubular coil encircling; the compressor cylinder and in heat exchange relation therewith, one end of said coil heingr in communication with the cooling coil and its other end in communication with the compressor.

JOHN W. ANDERSON. 

